If you haven't plug your Flash Drive into your PS3 and copy the save data.

•Plug your Flash Drive into your computer.Open it up so it shows all the files.Make a PS3 file and in that PS3 make another one SAVEDATA all caps.Now unplug itPlug it into your PS3 and under Save Data UtlityCopy the Call of Duty 4 Save DataUnplug it.--------------------------------------Plug your Flash Drive into your ComputerGo under PS3>SAVEDATA>BLUS30072-AUTO-Find GRADO_MPunder GRADO_MP find set customclass 1-5where it has this "Name of class"in front of the name "^1Name of class" Now it will be Name of class^1 is Red^2 is Green^3 is Yellow^4 is Blue^5 is Teal

When done save the document and unplug your Flash Drive.Put your Flash Drive into your PS3 and copy the Save Data from your Flash Drive to your PS3Go online under Custom Class and it will be the color you choosed.